Mailinglist Archive: opensuse (2114 mails)

[Anders Johansson <ajohansson@xxxxxxx>]

On Tuesday 21 October 2008 14:26:12 Ivan Gustin wrote:
> I checked mdadm syntax several times (so I can be pretty sure that there
> is no problem), tried to use several combinations, but I never get more
> than 180 MB/s, which is far for approx. upper limit 240 MB/s that I
> expected and wanted. Why I can't see any improvemet by adding fourth
> disk to RAID 0? Is there any other SW/HW limit that can apply?

It almost sounds like you have the disks configured as SATA 1, which has an 
upper speed limit of around 180 MB/s. SATA 2 doubles that

So check what kind of SATA you have configured. SATA 2 controllers can be in 
SATA 1 compatibility mode, so just because it's a SATA 2 controller, you can't 
assume it's configured correctly. Check the BIOS settings

Anders
-- 
To unsubscribe, e-mail: opensuse+unsubscribe@xxxxxxxxxxxx
For additional commands, e-mail: opensuse+help@xxxxxxxxxxxx